Fig. 2. Composite illustration of the anatomic findings in mesenchymal dysgenesis of the anterior ocular segment. The stepladder table demonstrates the spectrum of anatomic combinations of terms by which they are commonly known. The central abnormalities occur because of focal absence or attenuation of the endothelium. (Adapted from Reese AB, Ellsworth RM: The anterior chamber cleavage syndrome. Arch Ophthalmol 75:307–318, 1966. Copyright 1966, American Medical Association.)